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    • 8. 发明申请
    • Systems, Methods, and Apparatuses for Negative-Charge-Pump-Based Antenna Switch Controllers Utilizing Battery Supplies
    • 基于负电荷泵的天线开关控制器利用电池供电的系统,方法和装置
    • US20130029614A1
    • 2013-01-31
    • US13194325
    • 2011-07-29
    • Changhyuk ChoJeongwon ChaMinsik AhnChang-Ho LeeWyangmyong WooJae Joon Chang
    • Changhyuk ChoJeongwon ChaMinsik AhnChang-Ho LeeWyangmyong WooJae Joon Chang
    • H04B1/44
    • H04B1/48
    • Systems, methods, and apparatuses may provide for antenna switch controllers. An example antenna switch controller may include: a plurality of antenna switches commonly connected to one or more antennas, where each of the plurality of antenna switches includes a plurality of stacked transistors, where one of the plurality of antenna switches is enabled when transmitting or receiving one or more radio frequency (RF) signals via the one or more antennas; a voltage generator that receives an external supply voltage from a battery, where the voltage generator generates an internal supply voltage, where the internal supply voltage remains constant despite fluctuations in the external supply voltage from the battery; a clock buffer that generates clock signals from the constant internal supply voltage; and a charge pump that receives the clock signals and generates a constant negative voltage, where the constant negative voltage is for biasing of one or more of the plurality of antenna switches that are disabled.
    • 系统,方法和装置可以提供天线开关控制器。 示例性天线开关控制器可以包括:共同连接到一个或多个天线的多个天线开关,其中多个天线开关中的每一个天线开关包括多个堆叠晶体管,其中多个天线开关中的一个在发送或接收时被使能 经由一个或多个天线的一个或多个射频(RF)信号; 电压发生器,其从电池接收外部电源电压,其中电压发生器产生内部电源电压,其中内部电源电压保持恒定,尽管来自电池的外部电源电压的波动; 一个从恒定的内部电源电压产生时钟信号的时钟缓冲器; 以及电荷泵,其接收时钟信号并产生恒定的负电压,其中恒定的负电压用于对被禁用的多个天线开关中的一个或多个的偏置。